Record counts
| # | Migration site | Totals | Date | ||
|---|---|---|---|---|---|
| 1. |  |
VRS Castricum | 2 | 17 January 1987 | |
| 2. | |
VRS Castricum | 2 | 18 August 2016 | |
| 3. | |
VRS Castricum | 1 | 8 December 1978 | |
| 4. | |
VRS Castricum | 1 | 8 November 1980 | |
| 5. | |
VRS Castricum | 1 | 12 January 1982 | |
| 6. | |
VRS Castricum | 1 | 14 January 1982 | |
| 7. | |
VRS Castricum | 1 | 16 February 1985 | |
| 8. | |
VRS Castricum | 1 | 19 January 1987 | |
| 9. | |
VRS Castricum | 1 | 20 January 1987 | |
| 10. | |
VRS Castricum | 1 | 3 January 1993 | |
| 11. | |
VRS Castricum | 1 | 3 January 1996 | |
| 12. | |
VRS Castricum | 1 | 9 June 2000 | |
| 13. | |
VRS Castricum | 1 | 14 July 2005 | |
| 14. | |
VRS Castricum | 1 | 27 November 2005 | |
| 15. | |
VRS Castricum | 1 | 9 July 2006 | |
| 16. | |
VRS Castricum | 1 | 26 August 2006 | |
| 17. | |
VRS Castricum | 1 | 19 June 2007 | |
| 18. | |
VRS Castricum | 1 | 11 January 2009 | |
| 19. | |
VRS Castricum | 1 | 29 June 2010 | |
| 20. | |
VRS Castricum | 1 | 17 November 2011 | |
| 21. | |
VRS Castricum | 1 | 4 June 2012 | |
| 22. | |
VRS Castricum | 1 | 22 July 2012 | |
| 23. | |
VRS Castricum | 1 | 2 July 2013 | |
| 24. | |
VRS Castricum | 1 | 24 July 2013 | |
| 25. | |
VRS Castricum | 1 | 25 July 2013 | |
| 26. | |
VRS Castricum | 1 | 12 February 2017 | |
| 27. | |
VRS Castricum | 1 | 26 June 2018 | |
| 28. | |
VRS Castricum | 1 | 21 July 2018 | |
| 29. | |
VRS Castricum | 1 | 2 September 2018 | |
| 30. | |
VRS Castricum | 1 | 25 June 2020 | |
| 31. | |
VRS Castricum | 1 | 11 February 2021 | |
| 32. | |
VRS Castricum | 1 | 14 February 2021 | |
| 33. | |
VRS Castricum | 1 | 5 August 2021 | |
| 34. | |
VRS Castricum | 1 | 9 October 2022 | |
